Re: [gentoo-user] no sound with pulseaudio

[Spidey / Claudio]

On Thu, Sep 29, 2011 at 11:51, Canek Peláez Valdés <caneko@×××××.com> wrote:

> On Wed, Sep 28, 2011 at 8:26 PM, Tamer Higazi <th982a@××××××××××.com>
> wrote:
> > Am 29.09.2011 01:27, schrieb Canek Peláez Valdés:
> >> On Wed, Sep 28, 2011 at 7:08 PM, Tamer Higazi <th982a@××××××××××.com>
> wrote:
> >>> Am 29.09.2011 00:03, schrieb Canek Peláez Valdés:
> >>>> On Wed, Sep 28, 2011 at 5:49 PM, Tamer Higazi <th982a@××××××××××.com>
> wrote:
> >>>>> Am 28.09.2011 23:28, schrieb Canek Peláez Valdés:
> >>>>>> On Wed, Sep 28, 2011 at 5:24 PM, Tamer Higazi <
> th982a@××××××××××.com> wrote:
> >>>>>>> Hi!
> >>>>>>> I have configured pulseaudio according
> >>>>>>>
> >>>>>>> http://en.gentoo-wiki.com/wiki/PulseAudio
> >>>>>>>
> >>>>>>>
> >>>>>>> but I simply have no sound.
> >>>>>>>
> >>>>>>> The pulseaudio playback volume meter shows me signal, and that the
> bars
> >>>>>>> are jumping if I playback a music track.
> >>>>>>>
> >>>>>>> alsa-plugins (with pulseaudio USE flag)
> >>>>>>> gst-plugins-pulse
> >>>>>>>
> >>>>>>> are installed. But I don't know what is being blocked, that I have
> no
> >>>>>>> sound output at my headphones.
> >>>>>>>
> >>>>>>> PS: the headphones are ok.
> >>>>>>>
> >>>>>>> Any suggestions?
> >>>>>>
> >>>>>> What music player are you using? Did you set or modify ~/.asoundrc?
> >>>>>
> >>>>> ~/.asoundrc doesn't exist.
> >>>>>
> >>>>> I have /etc/asound.conf with these entries:
> >>>>>
> >>>>>
> >>>>> pcm.pulse {
> >>>>>    type pulse
> >>>>> }
> >>>>>
> >>>>> ctl.pulse {
> >>>>>    type pulse
> >>>>> }
> >>>>>
> >>>>> for all alsa applications to be redirected to pulse!
> >>>>
> >>>> Mmmh. It's not exactly like that: If you use pcm.pulse and ctl.pulse,
> >>>> then you need to specify pulse as the virtual ALSA device. If you want
> >>>> "all alsa applications to be redirected to pulse", you need:
> >>>>
> >>>> pcm.!default {
> >>>>     type pulse
> >>>> }
> >>>>
> >>>> ctl.!default {
> >>>>     type pulse
> >>>> }
> >>>>
> >>>>> The players Rhythmbox, xine all with pulseaudio default output
> plugins.
> >>>>
> >>>> That should work. Did you check in sound settings that pulse is indeed
> >>>> the desired output
> >>>>
> >>>>>> What Desktop do you use?
> >>>>>
> >>>>> Gnome, latest 2.x version
> >>>>>
> >>>>>  Is the pulseaudio daemon running?
> >>>>>
> >>>>> Yes!
> >>>>>
> >>>>> tamer@office ~ $ pstree -pu | grep puls
> >>>>>
> >>>>>
> |-pulseaudio(22833,tamer)-+-gconf-helper(22840)---{gconf-helper}(22841)
> >>>>>        |                         |-{pulseaudio}(22839)
> >>>>>        |                         `-{pulseaudio}(22842)
> >>>>
> >>>> Looks OK.
> >>>>
> >>>>> I have added all config files in "/etc/pulse/"
> >>>>
> >>>> I wouldn't touch the files on /etc/pulse. I recommend first trying to
> >>>> make it work with the files included with pulseaudio (backup
> >>>> /etc/pulse, move the dir out of /etc and emerge again pulseaudio)
> >>>> before trying anything else. Supposedly, pulseaudio should "just
> >>>> works". Since the first time I installed it I have never touched the
> >>>> files in /etc/pulse, except to change the log-level of the daemon.
> >>>>
> >>> As requested, I moved the pulse folder somewhere else and remerged
> >>> pulseaudio as well moved /etc/asound.conf somewhere else as well.
> >>>
> >>> No sound!
> >>
> >> Weird.
> >>
> >>>> I'm on GNOME 3, so things are a little different, and I don't remember
> >>>> exactly the dialogs, but instead of the Gentoo wiki page, I would
> >>>> follow this:
> >>>>
> >>>> http://www.pulseaudio.org/wiki/PerfectSetup
> >>>>
> >>>> And more specifically:
> >>>>
> >>>> http://www.pulseaudio.org/wiki/PerfectSetup#GNOME
> >>>>
> >>>> and
> >>>>
> >>>> http://www.pulseaudio.org/wiki/PerfectSetup#GStreamerApplications
> >>>>
> >>>> Also, in really weird cases, the ALSA device gets its volume muted:
> >>>> You can try to remove (back up first) /etc/asound.conf, and run (as
> >>>> root)
> >>>>
> >>>> alsamixer -V all
> >>>
> >>> I did, and fired all the bars up. nothing! really nothing!
> >>
> >> Really weird.
> >>
> >>>> and trying to unmute and turn up the volume on everything. When you
> >>>> hear something with any player, return the asound.conf to /etc and try
> >>>> again.
> >>>>
> >>>> Regards.
> >>>
> >>> I have the dumb feeling that one process is blocking the output, I hear
> >>> in my headphones the white noise of my system, which wouldn't be there
> >>> if the soundcard hadn't been initialised.
> >>
> >> It's more simple than that: if you see the bars movind in the mixer
> >> application, some sound should be made.
> >>
> >>> Is there a way to find out which applications might make use of the
> >>> soundcard right now?!
> >>
> >> Probably with strace or a similar tool; however, let me see first if
> >> I'm understanding the problem. This is a laptop?
> >
> > A usual tower machine! Core2 DUO, nothing's special!
> >
> >  If so, the sound
> >> works without headphones? The internal speakers work?
> >
> > with the headphones all the time....
> >
> > There are no internal speakers (not a notebook)
> >>
> >> Also, can you please post the output of "pactl list"?
> > Yes of course, here it is:
> >
> > http://pastebin.com/raw.php?i=wDgy3x64
>
> OK, I'm back on my laptop. I would have told you yesterday the
> commands, but using my phone keyboard make it slightly impossible.
>
> The problem (I think) is that your sound card has digital and analog
> outputs. At some point in the future, the kernel drivers would be able
> to auto-detect which output has a cable connected to it, but right now
> (AFAIK) is not working, and for some reason in your machine pulse is
> sending the output through the digital output: that's the meaning of:
>
> Aktive Profile: output:iec958-stereo
>
> the last line of your "pactl list". The profile you want is
> "output:analog-stereo+input:analog-stereo", because (if I'm not
> mistaken), that's the output that sends the sound to your speakers. To
> select that profile, simply do (as your normal user, not as root):
>
> pacmd set-card-profile 0 "output:analog-stereo+input:analog-stereo"
>
> The 0 is the index of your card (you know is this for the line "Karte
> #0" in the output of pactl list), and the profile is the analog one,
> both for output and input.
>
> Please reboot your machine with the default config files in
> /etc/pulse, and with your /etc/asound.conf, to make sure no other
> setting is getting in the way, and try the pacmd command. Then try
> again to play music with rhythmbox.
>
> Regards.
> --
> Canek Peláez Valdés
> Posgrado en Ciencia e Ingeniería de la Computación
> Universidad Nacional Autónoma de México
>
>
Merge pavucontrol and use it to configure pulseaudio, it's a graphical
"pacmd interface" (not exactly true).
Also, you don't need to reboot, only if you updated pulseaudio itself, and
even then, a logout-login should be enough.

Claudio Roberto França Pereira (a.k.a. Spidey)
hardMOB - HTForum - @spideybr
Engenharia de Computação - UFES 2006/1